1.By comparing fresh QZ2000 catalyst of UOP company with the catalyst used for 9 months, the properties of the catalyst such as pore volume, surface area, crystal structure, carbon deposit characteristic and heated benzene regeneration were studied, and the mechanisms of inactivity of the catalyst were researched. The most important reasons of the inactivity of the catalyst are as follows. 1 . Deeper alkylation in inter crystal pore and diffuse out to cause the carbon deposit, and it can regenerate through heated benzene;
对比新鲜和使用9个月UOP公司的QZ2000催化剂,研究催化剂孔容及比表面积、品型、积炭的表征和热苯洗再生,探析催化剂失活的机理:失活主要是在品内孔深度烷基化,并逐渐外扩散,形成积炭可热苯洗再生,砷、硫、羰基铁和镍等造成催化剂的永久性失活.
2.an active volcano in the Cascade Range in southwestern Washington state; erupted violently in 1980 after 123 years of inactivity.
位于华盛顿州西南部的活火山。
3.applies to nonhuman mammals: a state or interval of sexual inactivity between two periods of estrus.
用于指非人类哺乳动物；处于两个动情期之间的状态。
4.There is now a need for studies to differentiate between the potentially unique molecular, physiologic, and clinical effects of too much sitting (inactivity physiology) separate from the responses caused by structured exercise (exercise physiology).
现在，需要进行一些研究将长期坐姿（静止生理学）与体育锻炼（运动生理学）的潜在的独特的分子、生理和临床的效应区别开来。
5.The condition or quality of being passive; inactivity, quiescence, or submissiveness.
被动性被动的状态或性质；不主动、沉默或顺从
6.A state of disuse or inactivity.
废弃闲置的状态
7.Risk factors for type 2 diabetes include obesity, older age, family history, gestational diabetes, physical inactivity, and race/ethnicity.
2型糖尿病的风险因素包括肥胖、老龄、家族史、妊娠糖尿病、缺乏锻炼和种族差异。
8.In low-frequency warfare, significant events are separated by long periods of relative inactivity.
在低频度的战争中，重大事件被长时间的、相对而言不活跃的时期间隔开来。
9.He was really out of shape due to long inactivity.
因为他长久的不活动,所以他身体的状况不好。
10.(of animals that have several estrous cycles in one breeding season) in a period of sexual inactivity.
（指在一个繁殖期有几个发情周期的动物）不动情期。
